Analysis
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max time kernel
145s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
24/04/2023, 00:25
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230220-en
General
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Target
setup.exe
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Size
734KB
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MD5
f57e7fccf0bcd56b6497a67654a00b6f
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SHA1
3fa7b4b8ee11c0cd9dbad6f20581315d68b57a9c
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SHA256
92f300949b64286a0bd75f516473705cbadf67ddcae87c9b27f025f657a8442c
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SHA512
ec1fd7f8d42ec41eb91f782da1344daf1d8b947dd3a851fb205fc9a1d9a215f5728a0da7106a35fd2ed09f4380c0d5a369915af3e76dc2721c5300c3b6cc8be5
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SSDEEP
12288:Atg5af6cDh/ywouUImddiAFPSicN4xKT8QbmrddcjmQdJ1:Mg5I6qhJ14dicPS6YT8QqZc9
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.coza
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offline_id
O8Ao46dcCReRPC4I1PGMYsRFFc9WI5eOp0O3MFt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-EPBZCVAS8s Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0693JOsie
Extracted
vidar
3.5
bf58e1879f88b222ba2391682babf9d8
https://steamcommunity.com/profiles/76561199497218285
https://t.me/tg_duckworld
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profile_id_v2
bf58e1879f88b222ba2391682babf9d8
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user_agent
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7
Signatures
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Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral2/memory/1888-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3728-136-0x0000000004890000-0x00000000049AB000-memory.dmp family_djvu behavioral2/memory/1888-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1888-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1888-144-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1888-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-151-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-157-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-158-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-159-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-163-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-165-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-166-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-193-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2420-278-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation setup.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation setup.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation build2.exe -
Executes dropped EXE 4 IoCs
pid Process 1672 build2.exe 1364 build2.exe 4640 build3.exe 972 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 1364 build2.exe 1364 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1876 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7f22157e-f4d8-4717-a847-492f535dd2b7\\setup.exe\" --AutoStart" setup.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 10 api.2ip.ua 11 api.2ip.ua 25 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3728 set thread context of 1888 3728 setup.exe 85 PID 4408 set thread context of 2420 4408 setup.exe 89 PID 1672 set thread context of 1364 1672 build2.exe 94 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1616 schtasks.exe 2916 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2004 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1888 setup.exe 1888 setup.exe 2420 setup.exe 2420 setup.exe 1364 build2.exe 1364 build2.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 3728 wrote to memory of 1888 3728 setup.exe 85 PID 1888 wrote to memory of 1876 1888 setup.exe 86 PID 1888 wrote to memory of 1876 1888 setup.exe 86 PID 1888 wrote to memory of 1876 1888 setup.exe 86 PID 1888 wrote to memory of 4408 1888 setup.exe 87 PID 1888 wrote to memory of 4408 1888 setup.exe 87 PID 1888 wrote to memory of 4408 1888 setup.exe 87 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 4408 wrote to memory of 2420 4408 setup.exe 89 PID 2420 wrote to memory of 1672 2420 setup.exe 93 PID 2420 wrote to memory of 1672 2420 setup.exe 93 PID 2420 wrote to memory of 1672 2420 setup.exe 93 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 1672 wrote to memory of 1364 1672 build2.exe 94 PID 2420 wrote to memory of 4640 2420 setup.exe 95 PID 2420 wrote to memory of 4640 2420 setup.exe 95 PID 2420 wrote to memory of 4640 2420 setup.exe 95 PID 4640 wrote to memory of 1616 4640 build3.exe 96 PID 4640 wrote to memory of 1616 4640 build3.exe 96 PID 4640 wrote to memory of 1616 4640 build3.exe 96 PID 1364 wrote to memory of 1324 1364 build2.exe 101 PID 1364 wrote to memory of 1324 1364 build2.exe 101 PID 1364 wrote to memory of 1324 1364 build2.exe 101 PID 1324 wrote to memory of 2004 1324 cmd.exe 103 PID 1324 wrote to memory of 2004 1324 cmd.exe 103 PID 1324 wrote to memory of 2004 1324 cmd.exe 103 PID 972 wrote to memory of 2916 972 mstsca.exe 106 PID 972 wrote to memory of 2916 972 mstsca.exe 106 PID 972 wrote to memory of 2916 972 mstsca.exe 106
Processes
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3728 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\7f22157e-f4d8-4717-a847-492f535dd2b7" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1876
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4408 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Users\Admin\AppData\Local\4cbc8ae1-5b71-498c-ac2a-4e855da9c5ec\build2.exe"C:\Users\Admin\AppData\Local\4cbc8ae1-5b71-498c-ac2a-4e855da9c5ec\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Users\Admin\AppData\Local\4cbc8ae1-5b71-498c-ac2a-4e855da9c5ec\build2.exe"C:\Users\Admin\AppData\Local\4cbc8ae1-5b71-498c-ac2a-4e855da9c5ec\build2.exe"6⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\4cbc8ae1-5b71-498c-ac2a-4e855da9c5ec\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:2004
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C:\Users\Admin\AppData\Local\4cbc8ae1-5b71-498c-ac2a-4e855da9c5ec\build3.exe"C:\Users\Admin\AppData\Local\4cbc8ae1-5b71-498c-ac2a-4e855da9c5ec\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4640 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
PID:1616
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:972 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
PID:2916
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD50a0291b9bdf89c7e506366a8be70a80c
SHA1a30ddab885654862ba0be0159155bc99945c053f
SHA25631631ce5dfb41c09757fbd14367f9e46dc012eed1b8d462e933a34c102441272
SHA512b0c29fd46693496d0bd726db2a615049c8cc2996bc38132a57878706a8ee022bbb964b3f9c9bb67e520a82f2144d352655287e015f3617c85fabf72f752e30d5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5b7263b275d39b35a30dc1c997259591b
SHA122ff18c6f51280d4b41361fbc36c8cc8134bd70c
SHA256f9bf7b98d683c868daf9015ff946510adef6cdbe093bf3b30004bc3db0d5963a
SHA512251cbce9f5dc25f83cf4c6542e87dbe232b740667b48b5eec5903fb0c3a6c4442841bd8021dc949bc719a874055cbffff0bb522635aae8c8e24817ee83a91506
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD5cfb07c0c52c3a21adfc7c89bfe3c5c64
SHA1047cdeaf1902af7c86e3e2e12bd94d3ad34d2dfe
SHA25688b9282263a9472b671f47ba48738a8a51d9c2ce4235402abb4aa81d734003ee
SHA512dd2b6f57094d24d2bab5e06967ec4e4a2ac3f102998000e4866ed973e1913d5fc7e9866c058b160a2875fd5da5086dffcde297f81b4fd1bb71e9d443c08f322c
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5d49cea9726c1ad995b62077b375f7408
SHA162ddef036ff73a8c88d7f68baf61453e3d69f3fb
SHA2561efe35cff92715b675fb485fe564ebf5f0f68d29a5cb79f255bc8e0dfc5221c4
SHA51219273e3123c38b8ccbb9790c5a5fcfd003d2310c52b22e53c6cbe8811fe6f3ffb6226cfba018ab1f00a90c8d1ffa0ebb4dbd134441b0225a3458d80b22d800f4
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Filesize
324KB
MD5d0eb40fe08f409805aed3f5312bfb5b8
SHA15f7942d58673854f01d25c3831efcba4182882e9
SHA2562689a2c221cb723b4f35e912efa5c1f6df415d9f656b44c1c9cbbccf248ad1c6
SHA512ad0925312dfb7f2ac82670b77c746920154dc2095553ef0df70c0a935bf4d0e31850bd6c4781cbd4e97fcc0a1bf3f918e977134b9d9101ed71088278a7b61e94
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Filesize
324KB
MD5d0eb40fe08f409805aed3f5312bfb5b8
SHA15f7942d58673854f01d25c3831efcba4182882e9
SHA2562689a2c221cb723b4f35e912efa5c1f6df415d9f656b44c1c9cbbccf248ad1c6
SHA512ad0925312dfb7f2ac82670b77c746920154dc2095553ef0df70c0a935bf4d0e31850bd6c4781cbd4e97fcc0a1bf3f918e977134b9d9101ed71088278a7b61e94
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Filesize
324KB
MD5d0eb40fe08f409805aed3f5312bfb5b8
SHA15f7942d58673854f01d25c3831efcba4182882e9
SHA2562689a2c221cb723b4f35e912efa5c1f6df415d9f656b44c1c9cbbccf248ad1c6
SHA512ad0925312dfb7f2ac82670b77c746920154dc2095553ef0df70c0a935bf4d0e31850bd6c4781cbd4e97fcc0a1bf3f918e977134b9d9101ed71088278a7b61e94
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Filesize
324KB
MD5d0eb40fe08f409805aed3f5312bfb5b8
SHA15f7942d58673854f01d25c3831efcba4182882e9
SHA2562689a2c221cb723b4f35e912efa5c1f6df415d9f656b44c1c9cbbccf248ad1c6
SHA512ad0925312dfb7f2ac82670b77c746920154dc2095553ef0df70c0a935bf4d0e31850bd6c4781cbd4e97fcc0a1bf3f918e977134b9d9101ed71088278a7b61e94
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
734KB
MD5f57e7fccf0bcd56b6497a67654a00b6f
SHA13fa7b4b8ee11c0cd9dbad6f20581315d68b57a9c
SHA25692f300949b64286a0bd75f516473705cbadf67ddcae87c9b27f025f657a8442c
SHA512ec1fd7f8d42ec41eb91f782da1344daf1d8b947dd3a851fb205fc9a1d9a215f5728a0da7106a35fd2ed09f4380c0d5a369915af3e76dc2721c5300c3b6cc8be5
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a